Security update for kvm

SUSE Security Update: Security update for kvm
Announcement ID: SUSE-SU-2017:1135-1
Rating: important
References: #1013285 #1014109 #1014111 #1014702 #1015048 #1015169 #1016779 #1021129 #1023004 #1023053 #1023907 #1024972
Affected Products:
  • SUSE Linux Enterprise Server 11-SP4

  • An update that solves 10 vulnerabilities and has two fixes is now available.

    Description:


    This update for kvm fixes several issues.

    These security issues were fixed:

    - CVE-2017-2620: In CIRRUS_BLTMODE_MEMSYSSRC mode the bitblit copy routine
    cirrus_bitblt_cputovideo failed to check the memory region, allowing for
    an out-of-bounds write that allows for privilege escalation (bsc#1024972)
    - CVE-2017-2615: An error in the bitblt copy operation could have allowed
    a malicious guest administrator to cause an out of bounds memory access,
    possibly leading to information disclosure or privilege escalation
    (bsc#1023004)
    - CVE-2016-9776: The ColdFire Fast Ethernet Controller emulator support
    was vulnerable to an infinite loop issue while receiving packets in
    'mcf_fec_receive'. A privileged user/process inside guest could have
    used this issue to crash the Qemu process on the host leading to DoS
    (bsc#1013285)
    - CVE-2016-9911: The USB EHCI Emulation support was vulnerable to a memory
    leakage issue while processing packet data in 'ehci_init_transfer'. A
    guest user/process could have used this issue to leak host memory,
    resulting in DoS for the host (bsc#1014111)
    - CVE-2016-9907: The USB redirector usb-guest support was vulnerable to a
    memory leakage flaw when destroying the USB redirector in
    'usbredir_handle_destroy'. A guest user/process could have used this
    issue to leak host memory, resulting in DoS for a host (bsc#1014109)
    - CVE-2016-9921: The Cirrus CLGD 54xx VGA Emulator support was vulnerable
    to a divide by zero issue while copying VGA data. A privileged user
    inside guest could have used this flaw to crash the process instance on
    the host, resulting in DoS (bsc#1014702)
    - CVE-2016-9922: The Cirrus CLGD 54xx VGA Emulator support was vulnerable
    to a divide by zero issue while copying VGA data. A privileged user
    inside guest could have used this flaw to crash the process instance on
    the host, resulting in DoS (bsc#1014702)
    - CVE-2017-5898: The CCID Card device emulator support was vulnerable to
    an integer overflow allowing a privileged user inside the guest to crash
    the Qemu process resulting in DoS (bnc#1023907)
    - CVE-2016-10155: The virtual hardware watchdog 'wdt_i6300esb' was
    vulnerable to a memory leakage issue allowing a privileged user to cause
    a DoS and/or potentially crash the Qemu process on the host (bsc#1021129)
    - CVE-2017-5856: The MegaRAID SAS 8708EM2 Host Bus Adapter emulation
    support was vulnerable to a memory leakage issue allowing a privileged
    user to leak host memory resulting in DoS (bsc#1023053)

    These non-security issues were fixed:

    - Fixed various inaccuracies in cirrus vga device emulation
    - Fixed virtio interface failure (bsc#1015048)
    - Fixed graphical update errors introduced by previous security fix
    (bsc#1016779)

    Patch Instructions:

    To install this SUSE Security Update use YaST online_update.
    Alternatively you can run the command listed for your product:

    • SUSE Linux Enterprise Server 11-SP4:
      zypper in -t patch slessp4-kvm-13080=1

    To bring your system up-to-date, use "zypper patch".

    Package List:

    • SUSE Linux Enterprise Server 11-SP4 (i586 s390x x86_64):
      • kvm-1.4.2-59.1

    References: